C261 Tragic Death Seal and Tragic Death Ghost Technique

In the System Space, what Mo Yi saw was a seal about the size of a baby's fist. There was also a black book that was filled with ghostly qi.

"It's filled with ghostly qi. Looks like it's something from the Tragic Death City."

Mo Yi looked at these two items and thought to himself.

Old Demon Black Mountain was a demon from the Yang World. When he came to the Yin World